MSH host function in SQL server 2005 (See related posts)

    [Microsoft.SqlServer.Server.SqlFunction]
    public static SqlString sqlmsh(string input)
    {
        string output;
        Runspace runspace = RunspaceFactory.CreateRunspace();
        runspace.Open();
        Pipeline pipeline = runspace.CreatePipeline(input);
        MshObject myobj =   pipeline.Invoke()[0];
        if (myobj.BaseObject is XmlDocument)
         {
            output = (myobj.BaseObject as XmlDocument).InnerXml;
        } else
            output = myobj.ImmediateBaseObject.ToString();
            
        runspace.Close();
        return new SqlString(output);
    }